(Phys.org)—One of the more promising ideas for controlling or eliminating troublesome Asian carp populations in the Midwest's rivers is impractical and unsafe, according to a Purdue University researcher.

Imagine if your fear of spiders, heights or flying could be cured with a simple injection. Research published in BioMed Central's open access journal, Behavioral and Brain Functions suggests that one day this could be a r ...

It has been thought that young fish, lacking well-developed hearing organs, could not perceive the sounds made by their larger, older relatives. Now, researchers writing in the open access journal BMC Biology have u ...

Nearly all species have some ability to detect light. At least three types of cells in the retina allow us to see images or distinguish between night and day. Now, researchers at the Johns Hopkins School of ...

Goldfish

The goldfish (Carassius auratus auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. It was one of the earliest fish to be domesticated, and is one of the most commonly kept aquarium fish.

A relatively small member of the carp family (which also includes the koi carp and the crucian carp), the goldfish is a domesticated version of a less-colorful carp (Carassius auratus) native to east Asia. It was first domesticated in China more than a thousand years ago, and several distinct breeds have since been developed. Goldfish breeds vary greatly in size, body shape, fin configuration and coloration (various combinations of white, yellow, orange, red, brown, and black are known).